Update ICU to 54.1 step 1

source/common/udataswp.h

Index: source/common/udataswp.h
diff --git a/source/common/udataswp.h b/source/common/udataswp.h
index 52b99aaa3cf340548e1fc86bf849d9a52bd9a0ca..66c849556767086eab1b5fb9b032ef506700dc71 100644
--- a/source/common/udataswp.h
+++ b/source/common/udataswp.h
@@ -1,7 +1,7 @@
 /*
 *******************************************************************************
 *
-*   Copyright (C) 2003-2005, International Business Machines
+*   Copyright (C) 2003-2014, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 *
 *******************************************************************************
@@ -178,6 +178,8 @@ struct UDataSwapper {
     UDataSwapFn *swapArray16;
     /** Transform an array of 32-bit integers. @internal ICU 2.8 */
     UDataSwapFn *swapArray32;
+    /** Transform an array of 64-bit integers. @internal ICU 53 */
+    UDataSwapFn *swapArray64;
     /** Transform an invariant-character string. @internal ICU 2.8 */
     UDataSwapFn *swapInvChars;